Class part .... remember to shake before .... Did immediately after the game Germany vs. Ebgland used on 27.06.10. Was really hammer thus noisemakers through the city. Unfortunately, I have to deduct because it keeps nich soooooo long a star. In between, one must also shake even so again comes crashing.
Warning: if you do this for quite a time, like me, then your hand is nice and cold. In the summer already a nice side effect.
So I ordered my ever miss the next match after that.